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Despite achieving remarkable performance, Federated Learning (FL) encounters two important problems, i.e., low training efficiency and limited computational resources. In this paper, we propose a new FL framework, i.e., FedDUMAP, with three…

分布式、并行与集群计算 · 计算机科学 2024-08-13 Ji Liu , Juncheng Jia , Hong Zhang , Yuhui Yun , Leye Wang , Yang Zhou , Huaiyu Dai , Dejing Dou

Two common approaches to sequential decision-making are AI planning (AIP) and reinforcement learning (RL). Each has strengths and weaknesses. AIP is interpretable, easy to integrate with symbolic knowledge, and often efficient, but requires…

人工智能 · 计算机科学 2022-09-30 Junkyu Lee , Michael Katz , Don Joven Agravante , Miao Liu , Geraud Nangue Tasse , Tim Klinger , Shirin Sohrabi

We address the problem of agile and rapid locomotion, a key characteristic of quadrupedal and bipedal robots. We present a new algorithm that maintains stability and generates high-speed trajectories by considering the temporal aspect of…

机器人学 · 计算机科学 2025-11-19 Prakhar Mishra , Amir Hossain Raj , Xuesu Xiao , Dinesh Manocha

Large Language Models (LLMs) have demonstrated remarkable abilities in various language tasks, making them promising candidates for decision-making in robotics. Inspired by Hierarchical Reinforcement Learning (HRL), we propose…

机器人学 · 计算机科学 2024-10-07 Chuanneng Sun , Songjun Huang , Dario Pompili

Analyzing large scale data has emerged as an important activity for many organizations in the past few years. This large scale data analysis is facilitated by the MapReduce programming and execution model and its implementations, most…

数据库 · 计算机科学 2012-03-02 Iman Elghandour , Ashraf Aboulnaga

Class-incremental learning (CIL) aims to train a classification model while the number of classes increases phase-by-phase. An inherent challenge of CIL is the stability-plasticity tradeoff, i.e., CIL models should keep stable to retain old…

机器学习 · 计算机科学 2023-06-30 Yaoyao Liu , Yingying Li , Bernt Schiele , Qianru Sun

Adaptive traffic signal control (ATSC) is essential for mitigating urban congestion in modern smart cities, where traffic infrastructure is evolving into interconnected Web-of-Things (WoT) environments with thousands of sensing-and-control…

机器学习 · 计算机科学 2026-03-23 Yaqiao Zhu , Hongkai Wen , Geyong Min , Man Luo

Group Relative Policy Optimization (GRPO) is widely used for reinforcement learning with verifiable rewards, but it often suffers from advantage collapse: when all rollouts in a group receive the same reward, the group yields zero relative…

机器学习 · 计算机科学 2026-04-02 Yu Xia , Canwen Xu , Zhewei Yao , Julian McAuley , Yuxiong He

Imitation learning algorithms learn viable policies by imitating an expert's behavior when reward signals are not available. Generative Adversarial Imitation Learning (GAIL) is a state-of-the-art algorithm for learning policies when the…

Deep active learning (DAL) methods have shown significant improvements in sample efficiency compared to simple random sampling. While these studies are valuable, they nearly always assume that optimal DAL hyperparameter (HP) settings are…

机器学习 · 计算机科学 2024-12-09 Simiao Ren , Saad Lahrichi , Yang Deng , Willie J. Padilla , Leslie Collins , Jordan Malof

Currently, the wide spreading of real-time applications such as VoIP and videos-based applications require more data rates and reduced latency to ensure better quality of service (QoS). A well-designed traffic classification mechanism plays…

网络与互联网体系结构 · 计算机科学 2023-06-26 Getahun Wassie Geremew , Jianguo Ding

Federated learning (FL) supports training models on geographically distributed devices. However, traditional FL systems adopt a centralized synchronous strategy, putting high communication pressure and model generalization challenge.…

机器学习 · 计算机科学 2021-11-17 Jing Cao , Zirui Lian , Weihong Liu , Zongwei Zhu , Cheng Ji

Hierarchical reinforcement learning (HRL) is a promising approach to extend traditional reinforcement learning (RL) methods to solve more complex tasks. Yet, the majority of current HRL methods require careful task-specific design and…

机器学习 · 计算机科学 2018-10-08 Ofir Nachum , Shixiang Gu , Honglak Lee , Sergey Levine

Conventional autonomous trading systems struggle to balance computational efficiency and market responsiveness due to their fixed operating frequency. We propose Hi-DARTS, a hierarchical multi-agent reinforcement learning framework that…

机器学习 · 计算机科学 2025-09-16 Hoon Sagong , Heesu Kim , Hanbeen Hong

Horizontal Federated Learning (HFL) is particularly vulnerable to backdoor attacks as adversaries can easily manipulate both the training data and processes to execute sophisticated attacks. In this work, we study the impact of training…

密码学与安全 · 计算机科学 2025-09-09 Simon Lachnit , Ghassan Karame

Agentic Reinforcement Learning (RL) enables LLMs to solve complex tasks by alternating between a data-collection rollout phase and a policy training phase. During rollout, the agent generates trajectories, i.e., multi-step interactions…

机器学习 · 计算机科学 2026-03-31 Zili Zhang , Yinmin Zhong , Chengxu Yang , Chao Jin , Bingyang Wu , Xinming Wei , Yuliang Liu , Xin Jin

In the realm of edge computing, the increasing demand for high Quality of Service (QoS), particularly in dynamic multimedia streaming applications (e.g., Augmented Reality/Virtual Reality and online gaming), has prompted the need for…

分布式、并行与集群计算 · 计算机科学 2023-12-29 Cheng Zhang , Yinuo Deng , Hailiang Zhao , Tianlv Chen , Shuiguang Deng

Hierarchical Reinforcement Learning (HRL) is well-suitedd for solving complex tasks by breaking them down into structured policies. However, HRL agents often struggle with efficient exploration and quick adaptation. To overcome these…

机器学习 · 计算机科学 2025-03-18 Arash Khajooeinejad , Fatemeh Sadat Masoumi , Masoumeh Chapariniya

Modern Hybrid Transactional/Analytical Processing (HTAP) systems use an integrated data processing engine that performs analytics on fresh data, which are ingested from a transactional engine. HTAP systems typically consider data freshness…

数据库 · 计算机科学 2020-04-15 Aunn Raza , Periklis Chrysogelos , Angelos Christos Anadiotis , Anastasia Ailamaki

Federated active learning (FAL) seeks to reduce annotation cost under privacy constraints, yet its effectiveness degrades in realistic settings with severe global class imbalance and highly heterogeneous clients. We conduct a systematic…

机器学习 · 计算机科学 2026-03-12 Chen-Chen Zong , Sheng-Jun Huang